Abstract

The concept of supply chain inventory requirement has been widely used by companies to improve meeting the needs of its customers. Lost sales due to inventory shortage is an important thing to be avoided by the company. This research aims to build a inventory control system supplies fuel to the method of Distribution Requirements Planning (DRP) web-based on gas stations in the area of Semarang.
The method used for planning is the ordering of distribution requirements planning with the stage of determining the net requirements (netting), selection Lot (lotting), the timing of orders (offsetting) and the determination of gross requirements for next level (exploision). The Time Phased Order Point and min-max stock level Consept used for optimalitation needs Planning. Model Design of the system is using waterfall model which consists of system analysis, system design, system implementation and testing programs.
The research design of this system is the ordering of the supply system can be used to support and improve inventory control at retail outlets. The results of testing the system states that the system developed to support inventory control, increased security at gas stations supply needs to be better and minimize losses orders.
Keywords: Inventory Control; Needs Planning; Time Phased Order Point; Distribution Requirement Planning; Design system; Waterfall model